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1 MECHANICAL DEASIGN: Mechanical clockwork design makes it work without battery, it is environmentally friendly and could work longer.
2. MAGNET DESIGN: Magnets on the back for adsorption on iron-containing objects such as refrigerators and microwave ovens.
3. INDICATOR DESIGN: with a green indicator area on the dial,it's easier to recognize as the pointer moves away even in a distance.
4. 72 DB REMINDER DESIGN: it's suitable for a variety of scenarios. Suggest to use it in the room where you are.
5. Corrosion-resistant and oxidation-resistant metal casing